Internal-combustion engine



s. I. FEK ETE. INTERNAL COMBUSTION ENGINE. APFLICATICN FILED JULY IllI917- Patented June 15, 1920.

UNITED STATES STEPHEN IVAN FEKETE, OF DETROIT, MICHIGAN, ASSIGNOR, MESNEASSI ON- v PATENr orricn MENTS, TQ ESSEX MOTORS, OF DETROIT, MICHIGAN, ACORPORATION OF,

MICHIGAN.

INTERNAL-COMBUSTION ENGINE.

' Application filed m 11,

To all whom it may concern:

Be it known that l, STEPHEN IVAN FE- KE'IE, a citizen of the UnitedStates, residing at Detroit county of Wayne, State of Michigan, haveinvented a certain new and useful Improvement in Internal-CombustionEngines, of which the following is a specification, referencebeing hadtherein to the ac companying drawings.

My, invention relates to internal combustion engines having a pluralityof cylindersand particularly of the type in whichthe I inlet valve islocated on the top of the cylinders and the carbureter'is located on.the side helow the top of the engine. The particles of fuel musttherefore he lifted from the car-' hureter by the air and by it carriedup into the inlet manifold, thence along the inlet manifold in eitherdirection and past the inlet valves into the various cylinders. When theengine is cold the entire fuel will not he mixed with air or vaporizedbut on the contrary only the lighter oils will be vaporized while theheavier oils will remain in'liquid condition or will. condense on. thewalls of the passage. The movement of the air through the inlet manifoldwill not be sufficient to lift-the particles of heavy fuel up from'thecarbureter to the level of the inlet valves. Furthermore, when theengine is. running normally the particles of 1i t oil and the particlesof the hea oil w' l have different momentum and. wi

reached while the particles of lighter. oil.

will be carried onto the cylinders which are farthest away. The resultis that there is a" slight difi'erence in the carbnretion of the gasat'the cylinders which are nearer the careloureter and at those whichare farther away so that difficulty is experiencedin' adjusting thecarburetor to' a sions in all the c inders. {The foregoing produceuniform explo- 1917. Serial No. 180,023.

' troubles are characteristic-of engines having overhead valves.

My invention remedies these defects without adding to the expense orcomplicating the engine. I

The invention will be fully understood from the following descriptiontaken in connectionwith the accompanying drawings and the novel featuresthereof w1ll be pointed out and clearly defined in the. claims at theclose of this specification. 1

In the drawings, Figure 1 is a sectional elevation of one cylinder, anand a carbureterl ,Fig. 2 1s a viewinlet manifold in elevation of ablock or six cylinders together with the inlet -mani-' fold andcarbureter.

Fig. 3 is a plan view ofthe parts shown in Fi 2. y

fieferring now to the drawings, at Ais -shown a block of sin cylinders,inlet valves Specification of Letters Patent; Patent d J 1'5 1920 of theoverhead type being indicated at'fB. One of thecylinders (l is shown insection in Fig. l. 'l

valves B it instead of over the top of -them as has heretofore been theordinary construction with engines of. thistype'." At Eds j e inletmanifold is designated D and'lies at one side'of the line of inlet aVenturi'tuhe;.-'j At G is shown a float eh'amher of the carbureterconnected by a pipe lit through which the fuel passes to the fuel"orifice. .Anjy forin of carhureter may he usedln the .drawingsgfonly theessential elements of a carhureter. are shown.

lltwill be seen that, "the level of the fuel .jet is aloove the inletvalve E and the passage throughwhich the mixture of as and. 5

9.11 passes'to the engine isnowhere; inclined upwardly at all, hut onthe contrary is throu hout downwardly inclined eor horizont it will alsoheseenthat the inlet" a manifold l), which lies. along side the clinedpassa es K leading down to the inlet valvesfsl opes downwardly in bothdirections from its central part'at which the fuel'is atted so that-anyunvaporized hydrocarhon or heavy. particles thereof will flow downwardtoward the inlet valves; in.

other" words, the improve-a construction is such that the explosivemixture of gas and air emerging from; the air passage of the 1carbureter moves downward to the cylinders of the engine and there areno pockets into which the heavy particles may drop and accumulateneither are there any upwardly inclined places over which the heavyparticles of fuel require to be lifted. The result is that the enginepractically primes itself since all the fuel discharged from the fuelcontrary a uniform mixture in all the cylin-' ders is produced thusmaking it possible to adjust the carbureter more satisfactorily andproducing uniform explosions in all the cylinders. Increased economyalso results from the uniform accurate mixture offuel and air in all ofthe cylinders.

What I claim is:

1. An internal combustion engine having a plurality of cylinders, anoverhead valve in the top of each cylinder, a fuel inlet manifoldsloping downwardly in each direction";

Lseaee from a fuel admission point midway of the cylinders, anddownwardly inclined passages leading from said manifold to said valves,combined with a. carbureter the air inlet pipe of which enters the inletmanifold at the said point midway of said cylinders, said carbureterhaving a fuel jet nozzlelocated above said midway point.

2. An internal combustion engine having a plurality of cylinders andanoverhead inlet valve at the top of each cylinder, said engine beingprovided with a fuel inlet manifold arranged above the level of thesaid'inlet valves and sloping downwardly from its central part,downwardly inclined passages leading from said manifold to said valves,combined with a carbureter communicating with said "central part of saidmanifold, a fuel jet nozzle leading from said carbureter, and an airinlet pipe into which said nozzle projects with its end above the levelof the bottom of said manifold and from which nozzle the bottom of saidair inlet pipe slopes downward toward the bottom of said-manifold. Intestimony whereof I aflix my signature.

STEPHEN IVAN FEKETE.

